Nondisp fx of post pro of left talus, subs for fx w nonunion

This code signifies a fracture of the posterior process of the left talus that is not displaced, meaning the bone fragments remain in their normal alignment. The "nonunion" aspect indicates that the fracture has failed to heal completely after a typical healing period, requiring continued medical attention.

Apply this code for follow-up encounters with a patient who has a previously diagnosed, nondisplaced fracture of the posterior process of the left talus that has not united. This would be used when the patient is still receiving treatment for the nonunion, such as casting, bracing, or considering surgical intervention.

• Ensure documentation clearly states "nonunion" and specifies the left talus and posterior process.
• This code is for subsequent encounters; an initial encounter would use a different seventh character.
• Verify the fracture is indeed nondisplaced, as displaced fractures have different codes.